The equipment comprises three identical sized pipes: a heat pipe, a copper pipe, and a stainless steel pipe. The heat pipe's performance is evaluated in comparison to the copper and stainless steel pipes. All pipes are installed vertically, with a water-filled heat sink at the top and a band heater at the bottom. The longitudinal temperature distribution along the pipe clearly demonstrates the heat pipe's nearly isothermal operation

Experimental Objectives

• To study the performance heating of heat pipe and compare its working with best conductor.
• The apparatus consists of three different test specimen viz. Stainless Steel, Copper pipe and heat pipe which are bounded with a water cup at the top and heaters at the bottom.

Specifications

• Heat pipe Stainless Steel pipe, 25 mm O.D., 450 mm. Long. Sealed at both ends, evacuated and filled partially with distilled water  one Nos.
• Copper and stainless steel pipe of same size as that of heat pipe one each.
• Equal capacity heater at bottom end of each pipe.
• Water filled heat sinks at upper end of each pipe.
• Dimmerstat to control heat input to all the heaters 4 amp. Capacity One Nos.
• A voltmeter and an ammeter to measure input to heaters One each.
• Multichannel digital temperature indictor to measure temperatures along the length of pipes.
• Four thermocouples are provided on each pipe.
• Thermometers to note down water temperatures in heat sinks 3 Nos.

Required Other Items but not Included with above supply

• 230 V AC Single Phase supply.
• Floor Area  1 m X 0.5m X 0.5 m height